ETSI GS NFV-SOL 002 V2.5.1 (2018-09)

Network Functions Virtualisation (NFV) Release 2; Protocols and Data Models; RESTful protocols specification for the Ve-Vnfm Reference Point

RGS/NFV-SOL002ed251

General Information

• Status: Published
• Publication Date: 06-Sep-2018
• Technical Committee: NFV SOL - Solutions
• Current Stage: 12 - Completion
• Due Date: 29-Aug-2018
• Completion Date: 07-Sep-2018

Standards Content (Sample)

ETSI GS NFV-SOL 002 V2.5.1 (2018-09)






GROUP SPECIFICATION
Network Functions Virtualisation (NFV) Release 2;
Protocols and Data Models;
RESTful protocols specification
for the Ve-Vnfm Reference Point
Disclaimer
The present document has been produced and approved by the Network Functions Virtualisation (NFV) ETSI Industry
Specification Group (ISG) and represents the views of those members who participated in this ISG.
It does not necessarily represent the views of the entire ETSI membership.

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2 ETSI GS NFV-SOL 002 V2.5.1 (2018-09)



Reference
RGS/NFV-SOL002ed251
Keywords
API, NFV, protocol

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3 ETSI GS NFV-SOL 002 V2.5.1 (2018-09)
Contents
Intellectual Property Rights . 15
Foreword . 15
Modal verbs terminology . 15
1 Scope . 16
2 References . 16
2.1 Normative references . 16
2.2 Informative references . 17
3 Definitions and abbreviations . 18
3.1 Definitions . 18
3.2 Abbreviations . 18
4 General aspects . 19
4.1 Overview . 19
4.2 URI structure and supported content formats . 19
4.3 Common procedures. 20
4.3.1 Introduction. 20
4.3.2 Attribute-based filtering . 20
4.3.2.1 Overview and example (informative). 20
4.3.2.2 Specification. 21
4.3.3 Attribute selectors . 23
4.3.3.1 Overview and example (informative). 23
4.3.3.2 Specification. 23
4.3.3.2.1 GET request . 23
4.3.3.2.2 GET response . 24
4.3.4 Usage of HTTP header fields . 24
4.3.4.1 Introduction . 24
4.3.4.2 Request header fields . 24
4.3.4.3 Response header fields . 25
4.3.5 Error reporting . 26
4.3.5.1 Introduction . 26
4.3.5.2 General mechanism . 26
4.3.5.3 Type: ProblemDetails. 26
4.3.5.4 Common error situations . 26
4.3.5.5 Overview of HTTP error status codes . 28
4.4 Common data types . 29
4.4.1 Structured data types . 29
4.4.1.1 Introduction . 29
4.4.1.2 Type: Object . 29
4.4.1.3 Type: Link . 29
4.4.1.3a Type: NotificationLink . 30
4.4.1.4 Type: KeyValuePairs . 30
4.4.1.5 Type: VnfInstanceSubscriptionFilter . 30
4.4.1.6 Type: ApiVersionInformation . 31
4.4.2 Simple data types and enumerations . 32
4.4.2.1 Introduction . 32
4.4.2.2 Simple data types . 32
4.4.2.3 Enumerations . 32
4.5 Authorization of API requests and notifications . 32
4.5.1 Introduction. 32
4.5.2 Flows (informative) . 33
4.5.2.0 General . 33
4.5.2.1 Authorization of API requests using OAuth 2.0 access tokens . 33
4.5.2.1a Authorization of API requests using TLS certificates . 35
4.5.2.2 Authorization of notifications using the HTTP Basic authentication scheme . 36
4.5.2.3 Authorization of notifications using OAuth 2.0 access tokens. 37
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4 ETSI GS NFV-SOL 002 V2.5.1 (2018-09)
4.5.2.4 Authorization of notifications using TLS certificates . 39
4.5.3 Specification . 41
4.5.3.1 Introduction . 41
4.5.3.2 General mechanism . 41
4.5.3.3 Authorizing API requests . 41
4.5.3.4 Authorizing the sending of notifications . 42
4.5.3.5 Client roles . 43
4.5.3.6 Negotiation of authorization method . 44
4.5.3.6.1 Authorization of API requests . 44
4.5.3.6.2 Authorization of notification requests . 45
4.6 Version management . 46
4.6.1 Version identifiers and parameters . 46
4.6.1.1 Version identifiers . 46
4.6.1.2 Version parameters. 46
4.6.2 Rules for incrementing version identifier fields. 47
4.6.2.1 General . 47
4.6.2.2 Examples of backward and non-backward compatible changes . 47
4.6.3 Version information retrieval . 48
4.6.3.1 General . 48
4.6.3.2 Resource structure and methods . 49
4.6.3.3 Resource: API versions . 49
4.6.3.3.1 Description . 49
4.6.3.3.2 Resource definition . 49
4.6.3.3.3 Resource methods . 50
4.6.4 Version signalling . 50
4.7 Handling of large query results . 51
4.7.1 Description . 51
4.7.2 Specification . 51
4.7.2.1 Alternatives . 51
4.7.2.2 Error response . 52
4.7.2.3 Paged response . 52
5 VNF Lifecycle Management interface . 52
5.1 Description . 52
5.1a API version . 53
5.2 Resource structure and methods . 53
5.3 Sequence diagrams (informative) . 55
5.3.1 Flow of the creation of a VNF instance resource . 55
5.3.2 Flow of the deletion of a VNF instance resource . 56
5.3.3 Flow of VNF lifecycle management operations triggered by task resources . 57
5.3.4 Flow of automatic invocation of VNF scaling and VNF healing. 60
5.3.5 Flow of the Query VNF operation . 62
5.3.6 Flow of the Modify VNF Information operation . 63
5.3.7 Flow of the Get Operation Status operation . 64
5.3.8 Flow of managing subscriptions . 65
5.3.9 Flow of sending notifications. 67
5.3.10 Flow of retrying a VNF lifecycle management operation . 68
5.3.11 Flow of rolling back a VNF lifecycle management operation . 69
5.3.12 Flow of failing a VNF lifecycle management operation . 70
5.3.13 Flow of cancelling a VNF lifecycle management operation . 71
5.4 Resources . 73
5.4.1 Introduction. 73
5.4.1a Resource: API versions . 73
5.4.2 Resource: VNF instances . 74
5.4.2.1 Description . 74
5.4.2.2 Resource definition . 74
5.4.2.3 Resource methods . 74
5.4.2.3.1 POST . 74
5.4.2.3.2 GET . 74
5.4.2.3.3 PUT . 75
5.4.2.3.4 PATCH . 75
5.4.2.3.5 DELETE . 75
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5 ETSI GS NFV-SOL 002 V2.5.1 (2018-09)
5.4.3 Resource: Individual VNF instance . 76
5.4.3.1 Description . 76
5.4.3.2 Resource definition . 76
5.4.3.3 Resource methods . 76
5.4.3.3.1 POST . 76
5.4.3.3.2 GET . 76
5.4.3.3.3 PUT . 77
5.4.3.3.4 PATCH . 77
5.4.3.3.5 DELETE . 77
5.4.4 Resource: Instantiate VNF task . 78
5.4.4.1 Description . 78
5.4.4.2 Resource definition . 78
5.4.4.3 Resource methods . 78
5.4.4.3.1 POST . 78
5.4.4.3.2 GET . 79
5.4.4.3.3 PUT . 79
5.4.4.3.4 PATCH . 79
5.4.4.3.5 DELETE . 79
5.4.5 Resource: Scale VNF task . 79
5.4.5.1 Description . 79
5.4.5.2 Resource definition . 80
5.4.5.3 Resource methods . 80
5.4.5.3.1 POST . 80
5.4.5.3.2 GET . 81
5.4.5.3.3 PUT . 81
5.4.5.3.4 PATCH . 81
5.4.5.3.5 DELETE . 81
5.4.6 Resource: Scale VNF to Level task . 82
5.4.6.1 Description . 82
5.4.6.2 Resource definition . 82
5.4.6.3 Resource methods . 82
5.4.6.3.1 POST . 82
5.4.6.3.2 GET . 83
5.4.6.3.3 PUT . 83
5.4.6.3.4 PATCH . 83
5.4.6.3.5 DELETE . 83
5.4.7 Resource: Change VNF Flavour task . 84
5.4.7.1 Description . 84
5.4.7.2 Resource definition . 84
5.4.7.3 Resource methods . 84
5.4.7.3.1 POST . 84
5.4.7.3.2 GET . 85
5.4.7.3.3 PUT . 85
5.4.7.3.4 PATCH . 85
5.4.7.3.5 DELETE . 85
5.4.8 Resource: Terminate VNF task . 86
5.4.8.1 Description . 86
5.4.8.2 Resource definition . 86
5.4.8.3 Resource methods . 86
5.4.8.3.1 POST . 86
5.4.8.3.2 GET . 87
5.4.8.3.3 PUT . 87
5.4.8.3.4 PATCH . 87
5.4.8.3.5 DELETE . 87
5.4.9 Resource: Heal VNF task .
...